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| Keywords: Balantidium LifeCycle.png Cysts are the parasite stage responsible for transmission of balantidiasis The host most often acquires the cyst through ingestion of contaminated food or water Following ingestion excystation occurs in the small intestine and the trophozoites colonize the large intestine The trophozoites reside in the lumen of the large intestine of humans and animals where they replicate by binary fission during which conjugation may occur Trophozoites undergo encystation to produce infective cysts Some trophozoites invade the wall of the colon and multiply Some return to lumen and disintegrate Mature cysts are passed with feces http //www dpd cdc gov/dpdx/HTML/Balantidiasis htm 2007-11-14 PD-USGov Balantidium Original upload log wikitable - - 2007-11-14 20 22 16 435 × 566 27092 bytes Filip em <nowiki> Cysts are the parasite stage responsible for transmission of balantidiasis The host most often acquires the cyst through ingestion of contaminated food or water Following ingestion excystation occurs in the small intestin</nowiki> CDC lifecycles Life cycles of parasitic Protozoa | ||||
